Canon 6D cannot get GPS lock

What were the surrounding conditions like? I note it was outside, but was it cloudy, and were there buildings surrounding the camera?

I've found the GPS to be not particularly strong in receiving signals. It does kind of do its job eventually though. It does take a few min to obtain GPS location when first turned on for the first time on that day. But if it loses signal midway through GPS operation I've found that it could re-obtain GPS signal quite quickly (in maybe 30 seconds).